JP2005296765A - Human body vibration device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a human body vibration device capable of causing twisting motion between the upper part of a human body and the lower part to be performed simply and effectively. <P>SOLUTION: The human body vibration device is equipped with a vibration imparting means 1 for imparting vibration to the lower part of a human body H from the outside and generates twisting motion between the lower part and the upper part of the human body H. The vibration imparting means 1 imparts vibration at a near-resonance frequency which is previously sought based on the characteristics of the human body H and at which both the phase difference and the amplitude of the upper part and the lower part of the human body are large. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a human body vibration device for generating torsional vibration between a lower body and an upper body of a human body.

  Due to the recent health orientation, various types of health devices have been proposed, such as those that are hung on a rod-like member or the like to improve health, or that vibration is applied to the legs or waist to improve blood circulation at the site. What to do is provided. In particular, many devices that apply vibrations to legs, waists, and the like are composed of a human body vibration device having vibration applying means and apply vibrations to the human body via a belt or the like. In addition, since this prior art does not relate to the literature known invention, there is no prior art document information to be described.

  However, in the conventional human body vibration device, blood circulation is improved by the applied vibration to promote health, and the whole body exercise is not intended. By the way, it is known that as a whole body exercise, an exercise that causes torsion between the lower body and the upper body is known to be healthy, and the applicant of the present application has studied to perform such an exercise with a human body vibration device.

  This invention is made | formed in view of such a situation, and it is providing the human body vibration apparatus which can perform the torsional motion between an upper half body and a lower half body simply and effectively.

  The invention according to claim 1 is a human body vibration device that includes vibration applying means for applying vibration to the lower body of the human body from the outside, and generates torsional vibration between the lower body and the upper body of the human body, The vibration applying means is characterized in that it is obtained in advance based on the characteristics of the human body, and applies vibrations at a near resonance frequency at which both the phase difference and the amplitude of the upper and lower body of the human body are large. Here, since the phase difference becomes maximum at a frequency slightly higher than the resonance frequency, and the amplitude becomes maximum at the resonance frequency, the near resonance frequency where both the phase difference and the amplitude are large is: A frequency slightly higher than the resonance frequency.

  According to a second aspect of the present invention, in the human body vibration device according to the first aspect, the vibration imparting means imparts vibrations to the feet of an upright human body.

  According to a third aspect of the present invention, in the human body vibration device according to the first aspect, the vibration imparting means imparts vibration to a seating portion of the seated human body.

  According to a fourth aspect of the present invention, in the human body vibration device according to the second or third aspect, the near resonance frequency is about 2 to 7 Hz for an upright human body and about 1 to 4 Hz for a seated human body. It is characterized by that.

  According to a fifth aspect of the present invention, in the human body vibration device according to any one of the first to fourth aspects, a phase difference and an amplitude between a lower body and an upper body in a human body to which vibration is applied by the vibration applying unit. It has a detecting means for detecting the above.

  According to the first aspect of the present invention, vibration is applied at a near-resonance frequency that is obtained in advance based on the characteristics of the human body and has a large phase difference and amplitude between the upper and lower body of the human body. Thus, the torsional movement between the upper body and the lower body can be performed.

  According to the second aspect of the present invention, since vibration is applied to the feet of an upright human body, the configuration of the vibration applying means can be simplified.

  According to the invention of claim 3, since vibration is applied to the seated portion of the seated human body, a torsional motion between the upper body and the lower body can be performed in a natural and easy posture. In addition, since vibration is imparted by sitting, it is possible to perform a torsional motion stably regardless of the characteristics of the human body such as age and physical strength, compared to an upright one.

  According to the fourth aspect of the present invention, the near resonance frequency is about 2 to 7 Hz for an upright human body and about 1 to 4 Hz for a seated human body, so that it can be applied to a wider human body.

  According to the invention of claim 5, since the detecting means for detecting the phase difference and amplitude between the lower body and the upper body of the human body to which vibration is applied is provided, the phase difference and amplitude detected by the detecting means and the vibration applying means. By comparing with the near-resonance frequency obtained in advance for applying vibration, it is possible to determine whether or not the torsional motion is properly performed and to determine the softness of the human body.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The human body vibration device according to the first embodiment is for generating a torsional vibration between the lower body and upper body of the human body, and is mainly composed of vibration applying means 1 as shown in FIGS. Has been. The vibration applying means 1 includes a disk-shaped mounting table 2 on which a person can be mounted, a motor 3, a speed reducer 4, a lever 5, and a bearing 8 (see FIG. 3) on a base B. It is arranged and configured.

  The mounting table 2 is capable of rotational vibration (swing) around a shaft member 2a extending downward from the center on the back surface thereof, and has a strength that can withstand even a person is placed. In addition, a pair of levers 5 extending laterally while being spaced apart from each other by a predetermined dimension are fixed on the back surface of the mounting table 2, and the mounting table 2 is rotated and vibrated by a driving force applied to the lever 5. It is configured. In addition, although the mounting table 2 in the present embodiment has a disc shape, it may have another shape (for example, a rectangular shape) as long as a person can be mounted thereon.

  The motor 3 constitutes a drive source for the vibration applying means 1 and is connected to a power source (not shown) so that the output shaft 3a can be rotated at a constant rotational speed. The tip of the output shaft 3 a is connected to the speed reducer 4, and the driving force of the motor 3 is transmitted to the output shaft 4 a while being decelerated by the speed reducer 4. The output shaft 4a of the speed reducer 4 extends upward, and a crank 4b having a bearing 8 is formed at the tip.

  The bearing 8 is disposed with a predetermined dimension offset from the center of the crank 4b, and is held between a pair of levers 5 as shown in FIG. As a result, when the motor 3 is driven, the rotational driving force is transmitted to the crank 4b via the speed reducer 4, and the lever 5 and the mounting table 2 can be rotationally vibrated at a predetermined frequency by the operation of the bearing 8. ing. The rotational vibration of the mounting table 2 is referred to as vibration a.

  Further, the number of rotations of the motor 3 can be set by operating a dial or a switch button (not shown), and the frequency of the vibration a can be set to a near resonance frequency.

  Further, a slider 7 that can slide on the rail 6 is disposed at the lower end of the shaft member 2a of the mounting table 2, so that the distance from the crank 4b can be changed while the mounting table 2 is rotatable. It has become. That is, by sliding the slider 7 and changing the length t (see FIG. 3) between the rotation center of the mounting table 2 (the shaft member 2a) and the rotation center of the crank 4b, the bearing 8 with respect to the lever 5 is changed. The contact position can be changed, and thereby the swing angle of the mounting table 2 can be changed.

  Such a swing angle is preferably about 2 to 8 degrees, and is set to 6 degrees in the present embodiment (the same applies to the second embodiment). That is, if the swing angle is set to 2 degrees or less, the torsional motion between the upper body and the lower body of the human body becomes insufficient, and if it is set to 8 degrees or more, the torsional motion becomes excessive, which may adversely affect the human body. Because there is.

  Therefore, by setting the rotation speed of the motor 3, the vibration frequency can be arbitrarily set to a near resonance frequency, and by setting the slider 7 to an arbitrary position, the amplitude of the rotation vibration in the mounting table 2 can be easily set. Can be set. A variety of bearings such as roller bearings and needle bearings can be used as the bearings 8 and, as long as they can slide while abutting on the lever 5 and change the relative abutting position, they are simply convex portions. Etc.

  Here, in the present embodiment, torsional vibration is generated between the upper body and the lower body of the human body by applying a predetermined vibration a (rotational vibration) to the foot of the human body standing upright on the mounting table 2. Specifically, the vibration a applied to the human body H by the vibration applying means 1 is obtained in advance based on the characteristics of the human body, and both the phase difference and amplitude between the upper body and the lower body of the human body are both obtained. It is assumed that the resonance frequency becomes large.

  That is, as shown in FIG. 4, when vibration a is applied to the human body H on the mounting table 2, rotational vibration b of the thigh (lower half) of the human body H, rotational vibration c of the waist (lower half), and chest (upper body). ), The rotation vibration d is opposite in phase to the rotation vibrations b and c (the phase difference is maximal) and the amplitude is maximal, so that the vibration is large between the upper body and the lower body. A twist was added. Thus, the frequency of the vibration a applied to the mounting table 2 so as to increase both the phase difference and the amplitude will be referred to as a near resonance frequency, and an experiment for obtaining the near resonance frequency will be described below. .

  First, an optical position sensor is attached to each of the mounting table 2 and the thigh, waist, and chest of the human body H, and the human body H (young person) stands upright (arms are assembled). The motor 3 was driven with the vibration a of the mounting table 2 being arbitrarily changed. As a result, amplitude characteristics (frequency of vibration a−amplitude of each part) in a young person are shown in FIG. 5, and phase delay (frequency of vibration a−phase delay of each part) is shown in FIG. As can be seen from these experimental results, the phase difference between the upper and lower body of a young human body H increases from 3 (Hz), and the amplitude reaches a maximum at 3.5 (Hz), both of which increase. It can be seen that the near resonance frequency is about 3.5 to 4 (Hz). In particular, in FIG. 5, the amplitude is maximum even when the frequency of the vibration a is 0.8 (Hz), but at this frequency, the phase difference between the vibration a and the other vibrations b to d is obtained. It is clear that there is no phase difference between the upper body and the lower body (the phase difference between the feet and above).

  On the other hand, the same experiment was conducted with the human body H as an elderly person, and the results are shown in FIG. 7 (amplitude characteristics) and FIG. 8 (phase delay). As can be seen from the experimental results, it can be seen that the near-resonance frequency at which the phase difference and amplitude between the upper and lower bodies of the old human body H are large is about 5 to 5.5 (Hz).

  As described above, since the near resonance frequency is obtained in advance from the characteristics of the human body, if rotational vibration is applied to the human body from the vibration applying means 1 at the near resonance frequency, the phase difference and amplitude between the upper body and the lower body of the human body. Both become large, and a torsional motion between the upper body and the lower body can be performed simply and effectively. Moreover, according to this embodiment, since a vibration is provided with respect to the leg of an upright human body, the structure of the vibration provision means 1 can be simplified. Furthermore, if the near resonance frequency is set to about 2 to 7 (Hz), it can be applied to a wider human body from a young person to an elderly person.

Next, a second embodiment according to the present invention will be described.
Although the vibration applying means according to the present embodiment has substantially the same configuration as that of the first embodiment, as shown in FIG. 9, a chair 9 on which a human body H can be seated is placed on the mounting table 2. It is a thing. Then, the human body seated by the vibration a as shown in FIG. 10 is obtained by rotating and vibrating the mounting table 2 at a near-resonance frequency and applying vibration to the seating portion (bottom) of the seated human body H. A vibration d is generated in the chest of H.

  That is, when vibration a is applied to the human body H seated on the chair 9 on the mounting table 2, rotational vibration d of the chest (upper body) of the human body H is generated, so that the rotational vibration d is opposite to the rotational vibration a. If the phase (the phase difference is maximal) and the amplitude is maximal, a large torsion is applied between the upper body and the lower body. An experiment for obtaining the near resonance frequency at this time will be described below.

  First, an optical position sensor was attached to each of the mounting table 2 and the chest of the human body H, the human body H was seated on a chair, and the motor 3 was driven while arbitrarily changing the vibration a of the mounting table 2. As a result, the amplitude characteristic of the chest (frequency of vibration a−amplitude of each part) is shown in FIG. 11, and phase delay (frequency of vibration a−phase delay of each part) is shown in FIG. As can be seen from these experimental results, the phase difference between the upper body and lower body of the human body H in the seated state is maximum at about 2.5 Hz, and the amplitude is maximum at about 1.6 (Hz). It can be seen that is around 1.6 Hz.

  As described above, since the near resonance frequency is obtained in advance from the characteristics of the human body, the vibration applying means is used at the near resonance frequency (between 1.6 and 2.5 Hz in this experiment) as in the first embodiment. If rotational vibration is applied from 1 to the human body, the phase difference and amplitude between the upper body and lower body of the human body both increase, and a torsional motion between the upper body and lower body can be performed easily and effectively. In addition, according to the present embodiment, vibration is applied to the seated portion of the seated human body, so that the torsional motion between the upper body and the lower body can be performed in a natural and easy posture. Furthermore, since the vibration is applied by sitting, the torsional motion can be stably performed regardless of the characteristics of the human body such as age and physical strength, compared to the case of standing upright. In addition, if the near resonance frequency is set to about 1 to 4 (Hz), it can be applied to a wide range of human bodies as in the first embodiment.

  Although the present embodiment has been described above, the present invention is not limited thereto. For example, detection for detecting the phase difference and amplitude between the lower body and the upper body of a human body to which rotational vibration is applied by the vibration applying unit 1. It is good also as a human body vibration device provided with a means. For example, optical position sensors such as those performed in the above experiment are arranged in each part of the human body, and the phase difference and amplitude detected by the optical position sensor and the vibration applying means 1 are used to apply rotational vibration. Therefore, it is possible to determine whether or not the torsional motion is properly performed by comparing the phase difference and the amplitude that should be the near resonance frequency obtained in advance.

  That is, in the above-described embodiment, a near resonance frequency in which both the phase difference and amplitude between the upper body and the lower body are large is obtained, and therefore the near resonance frequency is based on the phase difference and amplitude detected by the detection means. When the frequency is higher than the near resonance frequency, it is understood that the human body is hard. In addition, it turns out from the said experimental result that near resonance frequency becomes high if it is elderly.

  Furthermore, the vibration applying means 1 may employ a mechanism different from that according to the present embodiment. For example, as shown in FIG. 13, an arm 10 extending from the center of the mounting table 2, a roller 11 disposed in the vicinity of the tip of the arm 10, and a cylindrical shape, and a groove 9 a having a predetermined locus is formed on a side surface thereof. As a vibration applying means comprising the formed solid cam 9 and the motor 3 and the speed reducer 4 for rotationally driving the solid cam 9, the roller 11 is arranged in the groove 9a of the solid cam 9. Also good.

  According to this configuration, when the motor 3 is driven, the rotational driving force is transmitted to the solid cam 9 via the speed reducer 4 and rotates, so that the roller 11 moves along the locus of the groove 9a and the arm 11 The mounting table 2 can be rotated and oscillated via. Thereby, it can be set as a more compact vibration provision means, and the whole human body vibration apparatus can be reduced in size. In addition to the three-dimensional cam 9 having a groove on the side surface, a solid cam having a similar locus on the side surface is formed as a three-dimensional cam, and a pair of rollers sandwiching the convex portion is formed on the arm 11. It is also good.

  If the vibration applying means is a human body vibration device that is obtained in advance based on the characteristics of the human body and applies vibration at a near resonance frequency in which both the phase difference and amplitude between the upper and lower body of the human body are large, the external shape It is possible to apply even if they are different or have other functions added.

The top view which shows the human body vibration apparatus (vibration provision means) which concerns on the 1st Embodiment of this invention. Side view showing a human body vibration device (vibration applying means) The schematic diagram which shows the positional relationship of a mounting base, a crank, and a bearing in a human body vibration apparatus (vibration provision means). Schematic diagram showing the vibration applied to the human body in the human body vibration device A graph showing the amplitude characteristics of each part, which is the result of an experiment conducted using the human body vibration device (experiment for young people). A graph showing the phase lag of each part, which is the result of an experiment conducted using a human body vibration device (experiment for young people). A graph showing the amplitude characteristics of each part, which is a result of an experiment conducted using the human body vibration device (experiment for elderly people). A graph showing the results of the experiment using the human body vibration device (experiment for the elderly) showing the phase lag of each part The schematic diagram which shows the mounting base in the human body vibration apparatus which concerns on the 2nd Embodiment of this invention, and the chair for seating. Schematic diagram showing the vibration applied to the human body in the human body vibration device A graph showing the amplitude characteristics of the chest, which is the result of an experiment performed using the human body vibration device A graph showing the phase delay of the chest, which is the result of an experiment conducted using the human body vibration device The schematic diagram which shows the vibration provision means in the human body vibration apparatus which concerns on other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vibration imparting means 2 Mounting stand 3 Motor 4 Reduction gear 5 Lever 6 Rail 7 Slider 8 Bearing 9 Solid cam 9a Groove 10 Arm 11 Roller

Claims (5)

A human body vibration device comprising vibration applying means for applying vibration to the lower body of the human body from the outside, and generating torsional vibration between the lower body and upper body of the human body,
The vibration applying means is provided in advance based on characteristics of a human body, and applies vibrations at a near resonance frequency at which both the phase difference and amplitude between the upper and lower body of the human body are large. .   2. The human body vibration device according to claim 1, wherein the vibration applying means applies vibration to an upright human foot.   The human body vibration device according to claim 1, wherein the vibration applying unit applies vibration to a seating portion of a seated human body.   4. The human body vibration device according to claim 2, wherein the near resonance frequency is about 2 to 7 Hz for an upright human body and about 1 to 4 Hz for a seated human body.   5. The detection unit according to claim 1, further comprising a detection unit configured to detect a phase difference and an amplitude between a lower body and an upper body of a human body to which vibration is applied by the vibration applying unit. Human body vibration device.

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